SK Hynix Smashes Records as AI Memory Demand Drives Historic Profits

Record-Breaking Quarter

SK Hynix has delivered its strongest financial performance in company history, posting fourth-quarter operating profit of nineteen point two trillion won (approximately thirteen point five billion dollars) for the October to December period of twenty twenty-five. The result more than doubled the eight point one trillion won recorded a year earlier and exceeded analyst expectations of seventeen point seven trillion won.

For the full year, the Nvidia supplier achieved operating profit of forty-seven point two trillion won against revenue of ninety-seven point one trillion won, both beating analyst estimates.

HBM Dominance Fuels Growth

The results underscore SK Hynix's commanding position in the high-bandwidth memory market, where the company holds approximately sixty-two percent market share. HBM revenue more than doubled year-on-year in twenty twenty-five as data centre operators and AI infrastructure builders scrambled to secure the specialised chips powering next-generation computing.

The company confirmed that HBM4 mass production is progressing on schedule, positioning it to maintain leadership as competitors Samsung Electronics and Micron Technology work to close the gap. SK Hynix is believed to have secured more than two-thirds of the HBM4 supply volume for Nvidia's next-generation Vera Rubin platform.

Massive Capital Investment Ahead

SK Hynix announced plans for a considerable increase in twenty twenty-six capital expenditure, with industry analysts projecting spending could exceed thirty trillion won, up from the mid-twenty trillion won range in twenty twenty-five.

The centrepiece is a thirteen billion dollar investment in a new Cheongju facility known as P&T7, which will become the world's largest HBM packaging plant. Construction begins in April twenty twenty-six with completion targeted for late twenty twenty-seven. The company is also preparing an advanced packaging plant in Indiana, which will be the first facility on US soil capable of high-volume two point five D packaging for HBM.

Supply Constraints Continue

SK Hynix indicated supply tightness will persist through the first quarter of twenty twenty-six, while noting that explosive server-driven memory demand is being mitigated by industry-wide capacity constraints. The company expects twenty twenty-six DRAM demand to rise over twenty percent year-on-year, with NAND demand projected to increase fifteen to twenty percent.